someone who is extemely dumb. They typically have a dumb face or dumb nature.
Half of the time, these people are not really unintelligent, but are just responding to a situation with lack of common sense.
People are usually referred to as dumbheads when the are drunk or do not agree with you.
Jawhara: hey nicole, wanna come to the concert with me
Nicole: no, i cant. im going out with josh.
Jawhara: DUMBHEAD! now who am i gonna go with. your real dumb, and you smell oddly!
Nicole: dumbhead, dont call me that. i have a 4.0!
by jSOULJAAAA May 13, 2008
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Someone who uses words such as gurl instead of girl, boi instead of boy, and other really retarded and lazy stuff like that.
Sort of similar to lazy freak
All dumbhead morons should be kicked off of the internet from this second on for the rest of eternity.
by dref said right June 11, 2004
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1. Someone who is fat, dumb, and not decapitated.

2. Adj.: Fat, dumb, and not decapitated.

3. Your mom.

4. To shave your mom.
1. Dude! check out that fat dumbhead over there. They should call him Fat Tony or Robert.

2. Your mom is extremely fat dumbhead. She needs liposuction.

3. Ask Fat Dumbhead if she'll buy us ice cream on the way home from school.

4. Are the rumors that someone besides your dad fat dumbheads every night at midnight true?
by Bertoff May 5, 2005
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